Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/hid/hkbd.c
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1 #include <sys/cdefs.h> 2 __FBSDID("$FreeBSD$"); 3 4 /*- 5 * SPDX-License-Identifier: BSD-2-Clause-NetBSD 6 * 7 * Copyright (c) 1998 The NetBSD Foundation, Inc. 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to The NetBSD Foundation 11 * by Lennart Augustsson (lennart@augustsson.net) at 12 * Carlstedt Research & Technology. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 * 35 */ 36 37 /* 38 * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf 39 */ 40 41 #include "opt_hid.h" 42 #include "opt_kbd.h" 43 #include "opt_hkbd.h" 44 #include "opt_evdev.h" 45 46 #include <sys/stdint.h> 47 #include <sys/stddef.h> 48 #include <sys/param.h> 49 #include <sys/queue.h> 50 #include <sys/types.h> 51 #include <sys/systm.h> 52 #include <sys/kernel.h> 53 #include <sys/bus.h> 54 #include <sys/module.h> 55 #include <sys/lock.h> 56 #include <sys/mutex.h> 57 #include <sys/condvar.h> 58 #include <sys/sysctl.h> 59 #include <sys/sx.h> 60 #include <sys/unistd.h> 61 #include <sys/callout.h> 62 #include <sys/malloc.h> 63 #include <sys/priv.h> 64 #include <sys/proc.h> 65 #include <sys/kdb.h> 66 #include <sys/epoch.h> 67 #include <sys/taskqueue.h> 68 #include <sys/bitstring.h> 69 70 #include <machine/atomic.h> 71 72 #define HID_DEBUG_VAR hkbd_debug 73 #include <dev/hid/hid.h> 74 #include <dev/hid/hidbus.h> 75 #include <dev/hid/hidquirk.h> 76 #include <dev/hid/hidrdesc.h> 77 78 #ifdef EVDEV_SUPPORT 79 #include <dev/evdev/input.h> 80 #include <dev/evdev/evdev.h> 81 #endif 82 83 #include <sys/ioccom.h> 84 #include <sys/filio.h> 85 #include <sys/kbio.h> 86 87 #include <dev/kbd/kbdreg.h> 88 89 /* the initial key map, accent map and fkey strings */ 90 #if defined(HKBD_DFLT_KEYMAP) && !defined(KLD_MODULE) 91 #define KBD_DFLT_KEYMAP 92 #include "ukbdmap.h" 93 #endif 94 95 /* the following file must be included after "ukbdmap.h" */ 96 #include <dev/kbd/kbdtables.h> 97 98 #ifdef HID_DEBUG 99 static int hkbd_debug = 0; 100 static int hkbd_no_leds = 0; 101 102 static SYSCTL_NODE(_hw_hid, OID_AUTO, hkbd, CTLFLAG_RW, 0, "USB keyboard"); 103 SYSCTL_INT(_hw_hid_hkbd, OID_AUTO, debug, CTLFLAG_RWTUN, 104 &hkbd_debug, 0, "Debug level"); 105 SYSCTL_INT(_hw_hid_hkbd, OID_AUTO, no_leds, CTLFLAG_RWTUN, 106 &hkbd_no_leds, 0, "Disables setting of keyboard leds"); 107 #endif 108 109 #define INPUT_EPOCH global_epoch_preempt 110 111 #define HKBD_EMULATE_ATSCANCODE 1 112 #define HKBD_DRIVER_NAME "hkbd" 113 #define HKBD_NKEYCODE 256 /* units */ 114 #define HKBD_IN_BUF_SIZE (4 * HKBD_NKEYCODE) /* scancodes */ 115 #define HKBD_IN_BUF_FULL ((HKBD_IN_BUF_SIZE / 2) - 1) /* scancodes */ 116 #define HKBD_NFKEY (sizeof(fkey_tab)/sizeof(fkey_tab[0])) /* units */ 117 #define HKBD_BUFFER_SIZE 64 /* bytes */ 118 #define HKBD_KEY_PRESSED(map, key) ({ \ 119 CTASSERT((key) >= 0 && (key) < HKBD_NKEYCODE); \ 120 bit_test(map, key); \ 121 }) 122 123 #define MOD_EJECT 0x01 124 #define MOD_FN 0x02 125 126 #define MOD_MIN 0xe0 127 #define MOD_MAX 0xe7 128 129 struct hkbd_softc { 130 device_t sc_dev; 131 132 keyboard_t sc_kbd; 133 keymap_t sc_keymap; 134 accentmap_t sc_accmap; 135 fkeytab_t sc_fkeymap[HKBD_NFKEY]; 136 bitstr_t bit_decl(sc_loc_key_valid, HKBD_NKEYCODE); 137 struct hid_location sc_loc_apple_eject; 138 struct hid_location sc_loc_apple_fn; 139 struct hid_location sc_loc_key[HKBD_NKEYCODE]; 140 struct hid_location sc_loc_numlock; 141 struct hid_location sc_loc_capslock; 142 struct hid_location sc_loc_scrolllock; 143 struct mtx sc_mtx; 144 struct task sc_task; 145 struct callout sc_callout; 146 /* All reported keycodes */ 147 bitstr_t bit_decl(sc_ndata, HKBD_NKEYCODE); 148 bitstr_t bit_decl(sc_odata, HKBD_NKEYCODE); 149 /* Keycodes reported in array fields only */ 150 bitstr_t bit_decl(sc_ndata0, HKBD_NKEYCODE); 151 bitstr_t bit_decl(sc_odata0, HKBD_NKEYCODE); 152 153 struct thread *sc_poll_thread; 154 #ifdef EVDEV_SUPPORT 155 struct evdev_dev *sc_evdev; 156 #endif 157 158 sbintime_t sc_co_basetime; 159 int sc_delay; 160 uint32_t sc_repeat_time; 161 uint32_t sc_input[HKBD_IN_BUF_SIZE]; /* input buffer */ 162 uint32_t sc_time_ms; 163 uint32_t sc_composed_char; /* composed char code, if non-zero */ 164 #ifdef HKBD_EMULATE_ATSCANCODE 165 uint32_t sc_buffered_char[2]; 166 #endif 167 uint32_t sc_flags; /* flags */ 168 #define HKBD_FLAG_COMPOSE 0x00000001 169 #define HKBD_FLAG_POLLING 0x00000002 170 #define HKBD_FLAG_ATTACHED 0x00000010 171 #define HKBD_FLAG_GONE 0x00000020 172 173 #define HKBD_FLAG_HID_MASK 0x003fffc0 174 #define HKBD_FLAG_APPLE_EJECT 0x00000040 175 #define HKBD_FLAG_APPLE_FN 0x00000080 176 #define HKBD_FLAG_APPLE_SWAP 0x00000100 177 #define HKBD_FLAG_NUMLOCK 0x00080000 178 #define HKBD_FLAG_CAPSLOCK 0x00100000 179 #define HKBD_FLAG_SCROLLLOCK 0x00200000 180 181 int sc_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */ 182 int sc_state; /* shift/lock key state */ 183 int sc_accents; /* accent key index (> 0) */ 184 int sc_polling; /* polling recursion count */ 185 int sc_led_size; 186 int sc_kbd_size; 187 188 uint32_t sc_inputhead; 189 uint32_t sc_inputtail; 190 191 uint8_t sc_iface_index; 192 uint8_t sc_iface_no; 193 uint8_t sc_id_apple_eject; 194 uint8_t sc_id_apple_fn; 195 uint8_t sc_id_loc_key[HKBD_NKEYCODE]; 196 uint8_t sc_id_leds; 197 uint8_t sc_kbd_id; 198 uint8_t sc_repeat_key; 199 200 uint8_t sc_buffer[HKBD_BUFFER_SIZE]; 201 }; 202 203 #define KEY_NONE 0x00 204 #define KEY_ERROR 0x01 205 206 #define KEY_PRESS 0 207 #define KEY_RELEASE 0x400 208 #define KEY_INDEX(c) ((c) & 0xFF) 209 210 #define SCAN_PRESS 0 211 #define SCAN_RELEASE 0x80 212 #define SCAN_PREFIX_E0 0x100 213 #define SCAN_PREFIX_E1 0x200 214 #define SCAN_PREFIX_CTL 0x400 215 #define SCAN_PREFIX_SHIFT 0x800 216 #define SCAN_PREFIX (SCAN_PREFIX_E0 | SCAN_PREFIX_E1 | \ 217 SCAN_PREFIX_CTL | SCAN_PREFIX_SHIFT) 218 #define SCAN_CHAR(c) ((c) & 0x7f) 219 220 #define HKBD_LOCK(sc) do { \ 221 if (!HID_IN_POLLING_MODE()) \ 222 mtx_lock(&(sc)->sc_mtx); \ 223 } while (0) 224 #define HKBD_UNLOCK(sc) do { \ 225 if (!HID_IN_POLLING_MODE()) \ 226 mtx_unlock(&(sc)->sc_mtx); \ 227 } while (0) 228 #define HKBD_LOCK_ASSERT(sc) do { \ 229 if (!HID_IN_POLLING_MODE()) \ 230 mtx_assert(&(sc)->sc_mtx, MA_OWNED); \ 231 } while (0) 232 #define SYSCONS_LOCK() do { \ 233 if (!HID_IN_POLLING_MODE()) \ 234 mtx_lock(&Giant); \ 235 } while (0) 236 #define SYSCONS_UNLOCK() do { \ 237 if (!HID_IN_POLLING_MODE()) \ 238 mtx_unlock(&Giant); \ 239 } while (0) 240 #define SYSCONS_LOCK_ASSERT() do { \ 241 if (!HID_IN_POLLING_MODE()) \ 242 mtx_assert(&Giant, MA_OWNED); \ 243 } while (0) 244 245 #define NN 0 /* no translation */ 246 /* 247 * Translate USB keycodes to AT keyboard scancodes. 248 */ 249 /* 250 * FIXME: Mac USB keyboard generates: 251 * 0x53: keypad NumLock/Clear 252 * 0x66: Power 253 * 0x67: keypad = 254 * 0x68: F13 255 * 0x69: F14 256 * 0x6a: F15 257 * 258 * USB Apple Keyboard JIS generates: 259 * 0x90: Kana 260 * 0x91: Eisu 261 */ 262 static const uint8_t hkbd_trtab[256] = { 263 0, 0, 0, 0, 30, 48, 46, 32, /* 00 - 07 */ 264 18, 33, 34, 35, 23, 36, 37, 38, /* 08 - 0F */ 265 50, 49, 24, 25, 16, 19, 31, 20, /* 10 - 17 */ 266 22, 47, 17, 45, 21, 44, 2, 3, /* 18 - 1F */ 267 4, 5, 6, 7, 8, 9, 10, 11, /* 20 - 27 */ 268 28, 1, 14, 15, 57, 12, 13, 26, /* 28 - 2F */ 269 27, 43, 43, 39, 40, 41, 51, 52, /* 30 - 37 */ 270 53, 58, 59, 60, 61, 62, 63, 64, /* 38 - 3F */ 271 65, 66, 67, 68, 87, 88, 92, 70, /* 40 - 47 */ 272 104, 102, 94, 96, 103, 99, 101, 98, /* 48 - 4F */ 273 97, 100, 95, 69, 91, 55, 74, 78,/* 50 - 57 */ 274 89, 79, 80, 81, 75, 76, 77, 71, /* 58 - 5F */ 275 72, 73, 82, 83, 86, 107, 122, NN, /* 60 - 67 */ 276 NN, NN, NN, NN, NN, NN, NN, NN, /* 68 - 6F */ 277 NN, NN, NN, NN, 115, 108, 111, 113, /* 70 - 77 */ 278 109, 110, 112, 118, 114, 116, 117, 119, /* 78 - 7F */ 279 121, 120, NN, NN, NN, NN, NN, 123, /* 80 - 87 */ 280 124, 125, 126, 127, 128, NN, NN, NN, /* 88 - 8F */ 281 129, 130, NN, NN, NN, NN, NN, NN, /* 90 - 97 */ 282 NN, NN, NN, NN, NN, NN, NN, NN, /* 98 - 9F */ 283 NN, NN, NN, NN, NN, NN, NN, NN, /* A0 - A7 */ 284 NN, NN, NN, NN, NN, NN, NN, NN, /* A8 - AF */ 285 NN, NN, NN, NN, NN, NN, NN, NN, /* B0 - B7 */ 286 NN, NN, NN, NN, NN, NN, NN, NN, /* B8 - BF */ 287 NN, NN, NN, NN, NN, NN, NN, NN, /* C0 - C7 */ 288 NN, NN, NN, NN, NN, NN, NN, NN, /* C8 - CF */ 289 NN, NN, NN, NN, NN, NN, NN, NN, /* D0 - D7 */ 290 NN, NN, NN, NN, NN, NN, NN, NN, /* D8 - DF */ 291 29, 42, 56, 105, 90, 54, 93, 106, /* E0 - E7 */ 292 NN, NN, NN, NN, NN, NN, NN, NN, /* E8 - EF */ 293 NN, NN, NN, NN, NN, NN, NN, NN, /* F0 - F7 */ 294 NN, NN, NN, NN, NN, NN, NN, NN, /* F8 - FF */ 295 }; 296 297 static const uint8_t hkbd_boot_desc[] = { HID_KBD_BOOTPROTO_DESCR() }; 298 299 /* prototypes */ 300 static void hkbd_timeout(void *); 301 static int hkbd_set_leds(struct hkbd_softc *, uint8_t); 302 static int hkbd_set_typematic(keyboard_t *, int); 303 #ifdef HKBD_EMULATE_ATSCANCODE 304 static uint32_t hkbd_atkeycode(int, const bitstr_t *); 305 static int hkbd_key2scan(struct hkbd_softc *, int, const bitstr_t *, int); 306 #endif 307 static uint32_t hkbd_read_char(keyboard_t *, int); 308 static void hkbd_clear_state(keyboard_t *); 309 static int hkbd_ioctl(keyboard_t *, u_long, caddr_t); 310 static int hkbd_enable(keyboard_t *); 311 static int hkbd_disable(keyboard_t *); 312 static void hkbd_interrupt(struct hkbd_softc *); 313 314 static task_fn_t hkbd_event_keyinput; 315 316 static device_probe_t hkbd_probe; 317 static device_attach_t hkbd_attach; 318 static device_detach_t hkbd_detach; 319 static device_resume_t hkbd_resume; 320 321 #ifdef EVDEV_SUPPORT 322 static evdev_event_t hkbd_ev_event; 323 324 static const struct evdev_methods hkbd_evdev_methods = { 325 .ev_event = hkbd_ev_event, 326 }; 327 #endif 328 329 static bool 330 hkbd_any_key_pressed(struct hkbd_softc *sc) 331 { 332 int result; 333 334 bit_ffs(sc->sc_odata, HKBD_NKEYCODE, &result); 335 return (result != -1); 336 } 337 338 static bool 339 hkbd_any_key_valid(struct hkbd_softc *sc) 340 { 341 int result; 342 343 bit_ffs(sc->sc_loc_key_valid, HKBD_NKEYCODE, &result); 344 return (result != -1); 345 } 346 347 static bool 348 hkbd_is_modifier_key(uint32_t key) 349 { 350 351 return (key >= MOD_MIN && key <= MOD_MAX); 352 } 353 354 static void 355 hkbd_start_timer(struct hkbd_softc *sc) 356 { 357 sbintime_t delay, now, prec; 358 359 now = sbinuptime(); 360 361 /* check if initial delay passed and fallback to key repeat delay */ 362 if (sc->sc_delay == 0) 363 sc->sc_delay = sc->sc_kbd.kb_delay2; 364 365 /* compute timeout */ 366 delay = SBT_1MS * sc->sc_delay; 367 sc->sc_co_basetime += delay; 368 369 /* check if we are running behind */ 370 if (sc->sc_co_basetime < now) 371 sc->sc_co_basetime = now; 372 373 /* This is rarely called, so prefer precision to efficiency. */ 374 prec = qmin(delay >> 7, SBT_1MS * 10); 375 if (!HID_IN_POLLING_MODE()) 376 callout_reset_sbt(&sc->sc_callout, sc->sc_co_basetime, prec, 377 hkbd_timeout, sc, C_ABSOLUTE); 378 } 379 380 static void 381 hkbd_put_key(struct hkbd_softc *sc, uint32_t key) 382 { 383 uint32_t tail; 384 385 HKBD_LOCK_ASSERT(sc); 386 387 DPRINTF("0x%02x (%d) %s\n", key, key, 388 (key & KEY_RELEASE) ? "released" : "pressed"); 389 390 #ifdef EVDEV_SUPPORT 391 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && sc->sc_evdev != NULL) 392 evdev_push_event(sc->sc_evdev, EV_KEY, 393 evdev_hid2key(KEY_INDEX(key)), !(key & KEY_RELEASE)); 394 if (sc->sc_evdev != NULL && evdev_is_grabbed(sc->sc_evdev)) 395 return; 396 #endif 397 398 tail = (sc->sc_inputtail + 1) % HKBD_IN_BUF_SIZE; 399 if (tail != atomic_load_acq_32(&sc->sc_inputhead)) { 400 sc->sc_input[sc->sc_inputtail] = key; 401 atomic_store_rel_32(&sc->sc_inputtail, tail); 402 } else { 403 DPRINTF("input buffer is full\n"); 404 } 405 } 406 407 static void 408 hkbd_do_poll(struct hkbd_softc *sc, uint8_t wait) 409 { 410 411 SYSCONS_LOCK_ASSERT(); 412 KASSERT((sc->sc_flags & HKBD_FLAG_POLLING) != 0, 413 ("hkbd_do_poll called when not polling\n")); 414 DPRINTFN(2, "polling\n"); 415 416 if (!HID_IN_POLLING_MODE()) { 417 /* 418 * In this context the kernel is polling for input, 419 * but the USB subsystem works in normal interrupt-driven 420 * mode, so we just wait on the USB threads to do the job. 421 * Note that we currently hold the Giant, but it's also used 422 * as the transfer mtx, so we must release it while waiting. 423 */ 424 while (sc->sc_inputhead == 425 atomic_load_acq_32(&sc->sc_inputtail)) { 426 /* 427 * Give USB threads a chance to run. Note that 428 * kern_yield performs DROP_GIANT + PICKUP_GIANT. 429 */ 430 kern_yield(PRI_UNCHANGED); 431 if (!wait) 432 break; 433 } 434 return; 435 } 436 437 while (sc->sc_inputhead == sc->sc_inputtail) { 438 hidbus_intr_poll(sc->sc_dev); 439 440 /* Delay-optimised support for repetition of keys */ 441 if (hkbd_any_key_pressed(sc)) { 442 /* a key is pressed - need timekeeping */ 443 DELAY(1000); 444 445 /* 1 millisecond has passed */ 446 sc->sc_time_ms += 1; 447 } 448 449 hkbd_interrupt(sc); 450 451 if (!wait) 452 break; 453 } 454 } 455 456 static int32_t 457 hkbd_get_key(struct hkbd_softc *sc, uint8_t wait) 458 { 459 uint32_t head; 460 int32_t c; 461 462 SYSCONS_LOCK_ASSERT(); 463 KASSERT(!HID_IN_POLLING_MODE() || 464 (sc->sc_flags & HKBD_FLAG_POLLING) != 0, 465 ("not polling in kdb or panic\n")); 466 467 if (sc->sc_flags & HKBD_FLAG_POLLING) 468 hkbd_do_poll(sc, wait); 469 470 head = sc->sc_inputhead; 471 if (head == atomic_load_acq_32(&sc->sc_inputtail)) { 472 c = -1; 473 } else { 474 c = sc->sc_input[head]; 475 head = (head + 1) % HKBD_IN_BUF_SIZE; 476 atomic_store_rel_32(&sc->sc_inputhead, head); 477 } 478 return (c); 479 } 480 481 static void 482 hkbd_interrupt(struct hkbd_softc *sc) 483 { 484 const uint32_t now = sc->sc_time_ms; 485 unsigned key; 486 487 HKBD_LOCK_ASSERT(sc); 488 489 /* 490 * Check for key changes, the order is: 491 * 1. Regular keys up 492 * 2. Modifier keys up 493 * 3. Modifier keys down 494 * 4. Regular keys down 495 * 496 * This allows devices which send events changing the state of 497 * both a modifier key and a regular key, to be correctly 498 * translated. */ 499 bit_foreach(sc->sc_odata, HKBD_NKEYCODE, key) { 500 if (hkbd_is_modifier_key(key) || bit_test(sc->sc_ndata, key)) 501 continue; 502 hkbd_put_key(sc, key | KEY_RELEASE); 503 504 /* clear repeating key, if any */ 505 if (sc->sc_repeat_key == key) 506 sc->sc_repeat_key = 0; 507 } 508 bit_foreach_at(sc->sc_odata, MOD_MIN, MOD_MAX + 1, key) 509 if (!bit_test(sc->sc_ndata, key)) 510 hkbd_put_key(sc, key | KEY_RELEASE); 511 bit_foreach_at(sc->sc_ndata, MOD_MIN, MOD_MAX + 1, key) 512 if (!bit_test(sc->sc_odata, key)) 513 hkbd_put_key(sc, key | KEY_PRESS); 514 bit_foreach(sc->sc_ndata, HKBD_NKEYCODE, key) { 515 if (hkbd_is_modifier_key(key) || bit_test(sc->sc_odata, key)) 516 continue; 517 hkbd_put_key(sc, key | KEY_PRESS); 518 519 sc->sc_co_basetime = sbinuptime(); 520 sc->sc_delay = sc->sc_kbd.kb_delay1; 521 hkbd_start_timer(sc); 522 523 /* set repeat time for last key */ 524 sc->sc_repeat_time = now + sc->sc_kbd.kb_delay1; 525 sc->sc_repeat_key = key; 526 } 527 528 /* synchronize old data with new data */ 529 memcpy(sc->sc_odata0, sc->sc_ndata0, bitstr_size(HKBD_NKEYCODE)); 530 memcpy(sc->sc_odata, sc->sc_ndata, bitstr_size(HKBD_NKEYCODE)); 531 532 /* check if last key is still pressed */ 533 if (sc->sc_repeat_key != 0) { 534 const int32_t dtime = (sc->sc_repeat_time - now); 535 536 /* check if time has elapsed */ 537 if (dtime <= 0) { 538 hkbd_put_key(sc, sc->sc_repeat_key | KEY_PRESS); 539 sc->sc_repeat_time = now + sc->sc_kbd.kb_delay2; 540 } 541 } 542 543 #ifdef EVDEV_SUPPORT 544 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && sc->sc_evdev != NULL) 545 evdev_sync(sc->sc_evdev); 546 if (sc->sc_evdev != NULL && evdev_is_grabbed(sc->sc_evdev)) 547 return; 548 #endif 549 550 /* wakeup keyboard system */ 551 if (!HID_IN_POLLING_MODE()) 552 taskqueue_enqueue(taskqueue_swi_giant, &sc->sc_task); 553 } 554 555 static void 556 hkbd_event_keyinput(void *context, int pending) 557 { 558 struct hkbd_softc *sc = context; 559 int c; 560 561 SYSCONS_LOCK_ASSERT(); 562 563 if ((sc->sc_flags & HKBD_FLAG_POLLING) != 0) 564 return; 565 566 if (sc->sc_inputhead == atomic_load_acq_32(&sc->sc_inputtail)) 567 return; 568 569 if (KBD_IS_ACTIVE(&sc->sc_kbd) && 570 KBD_IS_BUSY(&sc->sc_kbd)) { 571 /* let the callback function process the input */ 572 (sc->sc_kbd.kb_callback.kc_func) (&sc->sc_kbd, KBDIO_KEYINPUT, 573 sc->sc_kbd.kb_callback.kc_arg); 574 } else { 575 /* read and discard the input, no one is waiting for it */ 576 do { 577 c = hkbd_read_char(&sc->sc_kbd, 0); 578 } while (c != NOKEY); 579 } 580 } 581 582 static void 583 hkbd_timeout(void *arg) 584 { 585 struct hkbd_softc *sc = arg; 586 #ifdef EVDEV_SUPPORT 587 struct epoch_tracker et; 588 #endif 589 590 HKBD_LOCK_ASSERT(sc); 591 592 sc->sc_time_ms += sc->sc_delay; 593 sc->sc_delay = 0; 594 595 #ifdef EVDEV_SUPPORT 596 epoch_enter_preempt(INPUT_EPOCH, &et); 597 #endif 598 hkbd_interrupt(sc); 599 #ifdef EVDEV_SUPPORT 600 epoch_exit_preempt(INPUT_EPOCH, &et); 601 #endif 602 603 /* Make sure any leftover key events gets read out */ 604 taskqueue_enqueue(taskqueue_swi_giant, &sc->sc_task); 605 606 if (hkbd_any_key_pressed(sc) || 607 atomic_load_acq_32(&sc->sc_inputhead) != sc->sc_inputtail) { 608 hkbd_start_timer(sc); 609 } 610 } 611 612 static uint32_t 613 hkbd_apple_fn(uint32_t keycode) 614 { 615 switch (keycode) { 616 case 0x28: return 0x49; /* RETURN -> INSERT */ 617 case 0x2a: return 0x4c; /* BACKSPACE -> DEL */ 618 case 0x50: return 0x4a; /* LEFT ARROW -> HOME */ 619 case 0x4f: return 0x4d; /* RIGHT ARROW -> END */ 620 case 0x52: return 0x4b; /* UP ARROW -> PGUP */ 621 case 0x51: return 0x4e; /* DOWN ARROW -> PGDN */ 622 default: return keycode; 623 } 624 } 625 626 static uint32_t 627 hkbd_apple_swap(uint32_t keycode) 628 { 629 switch (keycode) { 630 case 0x35: return 0x64; 631 case 0x64: return 0x35; 632 default: return keycode; 633 } 634 } 635 636 static void 637 hkbd_intr_callback(void *context, void *data, hid_size_t len) 638 { 639 struct hkbd_softc *sc = context; 640 uint8_t *buf = data; 641 uint32_t i; 642 uint8_t id = 0; 643 uint8_t modifiers; 644 645 HKBD_LOCK_ASSERT(sc); 646 647 DPRINTF("actlen=%d bytes\n", len); 648 649 if (len == 0) { 650 DPRINTF("zero length data\n"); 651 return; 652 } 653 654 if (sc->sc_kbd_id != 0) { 655 /* check and remove HID ID byte */ 656 id = buf[0]; 657 buf++; 658 len--; 659 if (len == 0) { 660 DPRINTF("zero length data\n"); 661 return; 662 } 663 } 664 665 /* clear temporary storage */ 666 if (bit_test(sc->sc_loc_key_valid, 0) && id == sc->sc_id_loc_key[0]) { 667 bit_foreach(sc->sc_ndata0, HKBD_NKEYCODE, i) 668 bit_clear(sc->sc_ndata, i); 669 memset(&sc->sc_ndata0, 0, bitstr_size(HKBD_NKEYCODE)); 670 } 671 bit_foreach(sc->sc_ndata, HKBD_NKEYCODE, i) 672 if (id == sc->sc_id_loc_key[i]) 673 bit_clear(sc->sc_ndata, i); 674 675 /* clear modifiers */ 676 modifiers = 0; 677 678 /* scan through HID data */ 679 if ((sc->sc_flags & HKBD_FLAG_APPLE_EJECT) && 680 (id == sc->sc_id_apple_eject)) { 681 if (hid_get_data(buf, len, &sc->sc_loc_apple_eject)) 682 modifiers |= MOD_EJECT; 683 } 684 if ((sc->sc_flags & HKBD_FLAG_APPLE_FN) && 685 (id == sc->sc_id_apple_fn)) { 686 if (hid_get_data(buf, len, &sc->sc_loc_apple_fn)) 687 modifiers |= MOD_FN; 688 } 689 690 bit_foreach(sc->sc_loc_key_valid, HKBD_NKEYCODE, i) { 691 if (id != sc->sc_id_loc_key[i]) { 692 continue; /* invalid HID ID */ 693 } else if (i == 0) { 694 struct hid_location tmp_loc = sc->sc_loc_key[0]; 695 /* range check array size */ 696 if (tmp_loc.count > HKBD_NKEYCODE) 697 tmp_loc.count = HKBD_NKEYCODE; 698 while (tmp_loc.count--) { 699 uint32_t key = 700 hid_get_udata(buf, len, &tmp_loc); 701 /* advance to next location */ 702 tmp_loc.pos += tmp_loc.size; 703 if (key == KEY_ERROR) { 704 DPRINTF("KEY_ERROR\n"); 705 memcpy(sc->sc_ndata0, sc->sc_odata0, 706 bitstr_size(HKBD_NKEYCODE)); 707 memcpy(sc->sc_ndata, sc->sc_odata, 708 bitstr_size(HKBD_NKEYCODE)); 709 return; /* ignore */ 710 } 711 if (modifiers & MOD_FN) 712 key = hkbd_apple_fn(key); 713 if (sc->sc_flags & HKBD_FLAG_APPLE_SWAP) 714 key = hkbd_apple_swap(key); 715 if (key == KEY_NONE || key >= HKBD_NKEYCODE) 716 continue; 717 /* set key in bitmap */ 718 bit_set(sc->sc_ndata, key); 719 bit_set(sc->sc_ndata0, key); 720 } 721 } else if (hid_get_data(buf, len, &sc->sc_loc_key[i])) { 722 uint32_t key = i; 723 724 if (modifiers & MOD_FN) 725 key = hkbd_apple_fn(key); 726 if (sc->sc_flags & HKBD_FLAG_APPLE_SWAP) 727 key = hkbd_apple_swap(key); 728 if (key == KEY_NONE || key == KEY_ERROR || key >= HKBD_NKEYCODE) 729 continue; 730 /* set key in bitmap */ 731 bit_set(sc->sc_ndata, key); 732 } 733 } 734 #ifdef HID_DEBUG 735 DPRINTF("modifiers = 0x%04x\n", modifiers); 736 bit_foreach(sc->sc_ndata, HKBD_NKEYCODE, i) 737 DPRINTF("Key 0x%02x pressed\n", i); 738 #endif 739 hkbd_interrupt(sc); 740 } 741 742 /* A match on these entries will load ukbd */ 743 static const struct hid_device_id __used hkbd_devs[] = { 744 { HID_TLC(HUP_GENERIC_DESKTOP, HUG_KEYBOARD) }, 745 }; 746 747 static int 748 hkbd_probe(device_t dev) 749 { 750 keyboard_switch_t *sw = kbd_get_switch(HKBD_DRIVER_NAME); 751 int error; 752 753 DPRINTFN(11, "\n"); 754 755 if (sw == NULL) { 756 return (ENXIO); 757 } 758 759 error = HIDBUS_LOOKUP_DRIVER_INFO(dev, hkbd_devs); 760 if (error != 0) 761 return (error); 762 763 hidbus_set_desc(dev, "Keyboard"); 764 765 return (BUS_PROBE_DEFAULT); 766 } 767 768 static void 769 hkbd_parse_hid(struct hkbd_softc *sc, const uint8_t *ptr, uint32_t len, 770 uint8_t tlc_index) 771 { 772 uint32_t flags; 773 uint32_t key; 774 uint8_t id; 775 776 /* reset detected bits */ 777 sc->sc_flags &= ~HKBD_FLAG_HID_MASK; 778 779 /* reset detected keys */ 780 memset(sc->sc_loc_key_valid, 0, bitstr_size(HKBD_NKEYCODE)); 781 782 /* check if there is an ID byte */ 783 sc->sc_kbd_size = hid_report_size_max(ptr, len, 784 hid_input, &sc->sc_kbd_id); 785 786 /* investigate if this is an Apple Keyboard */ 787 if (hidbus_locate(ptr, len, 788 HID_USAGE2(HUP_CONSUMER, HUG_APPLE_EJECT), 789 hid_input, tlc_index, 0, &sc->sc_loc_apple_eject, &flags, 790 &sc->sc_id_apple_eject, NULL)) { 791 if (flags & HIO_VARIABLE) 792 sc->sc_flags |= HKBD_FLAG_APPLE_EJECT | 793 HKBD_FLAG_APPLE_SWAP; 794 DPRINTFN(1, "Found Apple eject-key\n"); 795 } 796 if (hidbus_locate(ptr, len, 797 HID_USAGE2(0xFFFF, 0x0003), 798 hid_input, tlc_index, 0, &sc->sc_loc_apple_fn, &flags, 799 &sc->sc_id_apple_fn, NULL)) { 800 if (flags & HIO_VARIABLE) 801 sc->sc_flags |= HKBD_FLAG_APPLE_FN; 802 DPRINTFN(1, "Found Apple FN-key\n"); 803 } 804 805 /* figure out event buffer */ 806 if (hidbus_locate(ptr, len, 807 HID_USAGE2(HUP_KEYBOARD, 0x00), 808 hid_input, tlc_index, 0, &sc->sc_loc_key[0], &flags, 809 &sc->sc_id_loc_key[0], NULL)) { 810 if (flags & HIO_VARIABLE) { 811 DPRINTFN(1, "Ignoring keyboard event control\n"); 812 } else { 813 bit_set(sc->sc_loc_key_valid, 0); 814 DPRINTFN(1, "Found keyboard event array\n"); 815 } 816 } 817 818 /* figure out the keys */ 819 for (key = 1; key != HKBD_NKEYCODE; key++) { 820 if (hidbus_locate(ptr, len, 821 HID_USAGE2(HUP_KEYBOARD, key), 822 hid_input, tlc_index, 0, &sc->sc_loc_key[key], &flags, 823 &sc->sc_id_loc_key[key], NULL)) { 824 if (flags & HIO_VARIABLE) { 825 bit_set(sc->sc_loc_key_valid, key); 826 DPRINTFN(1, "Found key 0x%02x\n", key); 827 } 828 } 829 } 830 831 /* figure out leds on keyboard */ 832 if (hidbus_locate(ptr, len, 833 HID_USAGE2(HUP_LEDS, 0x01), 834 hid_output, tlc_index, 0, &sc->sc_loc_numlock, &flags, 835 &sc->sc_id_leds, NULL)) { 836 if (flags & HIO_VARIABLE) 837 sc->sc_flags |= HKBD_FLAG_NUMLOCK; 838 DPRINTFN(1, "Found keyboard numlock\n"); 839 } 840 if (hidbus_locate(ptr, len, 841 HID_USAGE2(HUP_LEDS, 0x02), 842 hid_output, tlc_index, 0, &sc->sc_loc_capslock, &flags, 843 &id, NULL)) { 844 if ((sc->sc_flags & HKBD_FLAG_NUMLOCK) == 0) 845 sc->sc_id_leds = id; 846 if (flags & HIO_VARIABLE && sc->sc_id_leds == id) 847 sc->sc_flags |= HKBD_FLAG_CAPSLOCK; 848 DPRINTFN(1, "Found keyboard capslock\n"); 849 } 850 if (hidbus_locate(ptr, len, 851 HID_USAGE2(HUP_LEDS, 0x03), 852 hid_output, tlc_index, 0, &sc->sc_loc_scrolllock, &flags, 853 &id, NULL)) { 854 if ((sc->sc_flags & (HKBD_FLAG_NUMLOCK | HKBD_FLAG_CAPSLOCK)) 855 == 0) 856 sc->sc_id_leds = id; 857 if (flags & HIO_VARIABLE && sc->sc_id_leds == id) 858 sc->sc_flags |= HKBD_FLAG_SCROLLLOCK; 859 DPRINTFN(1, "Found keyboard scrolllock\n"); 860 } 861 862 if ((sc->sc_flags & (HKBD_FLAG_NUMLOCK | HKBD_FLAG_CAPSLOCK | 863 HKBD_FLAG_SCROLLLOCK)) != 0) 864 sc->sc_led_size = hid_report_size(ptr, len, 865 hid_output, sc->sc_id_leds); 866 } 867 868 static int 869 hkbd_attach(device_t dev) 870 { 871 struct hkbd_softc *sc = device_get_softc(dev); 872 const struct hid_device_info *hw = hid_get_device_info(dev); 873 int unit = device_get_unit(dev); 874 keyboard_t *kbd = &sc->sc_kbd; 875 void *hid_ptr = NULL; 876 int err; 877 uint16_t n; 878 hid_size_t hid_len; 879 uint8_t tlc_index = hidbus_get_index(dev); 880 #ifdef EVDEV_SUPPORT 881 struct evdev_dev *evdev; 882 int i; 883 #endif 884 885 sc->sc_dev = dev; 886 SYSCONS_LOCK_ASSERT(); 887 888 kbd_init_struct(kbd, HKBD_DRIVER_NAME, KB_OTHER, unit, 0, 0, 0); 889 890 kbd->kb_data = (void *)sc; 891 892 sc->sc_mode = K_XLATE; 893 894 mtx_init(&sc->sc_mtx, "hkbd lock", NULL, MTX_DEF); 895 TASK_INIT(&sc->sc_task, 0, hkbd_event_keyinput, sc); 896 callout_init_mtx(&sc->sc_callout, &sc->sc_mtx, 0); 897 898 hidbus_set_intr(dev, hkbd_intr_callback, sc); 899 /* interrupt handler will be called with hkbd mutex taken */ 900 hidbus_set_lock(dev, &sc->sc_mtx); 901 /* interrupt handler can be called during panic */ 902 hidbus_set_flags(dev, hidbus_get_flags(dev) | HIDBUS_FLAG_CAN_POLL); 903 904 /* setup default keyboard maps */ 905 906 sc->sc_keymap = key_map; 907 sc->sc_accmap = accent_map; 908 for (n = 0; n < HKBD_NFKEY; n++) { 909 sc->sc_fkeymap[n] = fkey_tab[n]; 910 } 911 912 kbd_set_maps(kbd, &sc->sc_keymap, &sc->sc_accmap, 913 sc->sc_fkeymap, HKBD_NFKEY); 914 915 KBD_FOUND_DEVICE(kbd); 916 917 hkbd_clear_state(kbd); 918 919 /* 920 * FIXME: set the initial value for lock keys in "sc_state" 921 * according to the BIOS data? 922 */ 923 KBD_PROBE_DONE(kbd); 924 925 /* get HID descriptor */ 926 err = hid_get_report_descr(dev, &hid_ptr, &hid_len); 927 928 if (err == 0) { 929 DPRINTF("Parsing HID descriptor of %d bytes\n", 930 (int)hid_len); 931 932 hkbd_parse_hid(sc, hid_ptr, hid_len, tlc_index); 933 } 934 935 /* check if we should use the boot protocol */ 936 if (hid_test_quirk(hw, HQ_KBD_BOOTPROTO) || 937 (err != 0) || hkbd_any_key_valid(sc) == false) { 938 DPRINTF("Forcing boot protocol\n"); 939 940 err = hid_set_protocol(dev, 0); 941 942 if (err != 0) { 943 DPRINTF("Set protocol error=%d (ignored)\n", err); 944 } 945 946 hkbd_parse_hid(sc, hkbd_boot_desc, sizeof(hkbd_boot_desc), 0); 947 } 948 949 /* ignore if SETIDLE fails, hence it is not crucial */ 950 hid_set_idle(dev, 0, 0); 951 952 hkbd_ioctl(kbd, KDSETLED, (caddr_t)&sc->sc_state); 953 954 KBD_INIT_DONE(kbd); 955 956 if (kbd_register(kbd) < 0) { 957 goto detach; 958 } 959 KBD_CONFIG_DONE(kbd); 960 961 hkbd_enable(kbd); 962 963 #ifdef KBD_INSTALL_CDEV 964 if (kbd_attach(kbd)) { 965 goto detach; 966 } 967 #endif 968 969 #ifdef EVDEV_SUPPORT 970 evdev = evdev_alloc(); 971 evdev_set_name(evdev, device_get_desc(dev)); 972 evdev_set_phys(evdev, device_get_nameunit(dev)); 973 evdev_set_id(evdev, hw->idBus, hw->idVendor, hw->idProduct, 974 hw->idVersion); 975 evdev_set_serial(evdev, hw->serial); 976 evdev_set_methods(evdev, kbd, &hkbd_evdev_methods); 977 evdev_set_flag(evdev, EVDEV_FLAG_EXT_EPOCH); /* hidbus child */ 978 evdev_support_event(evdev, EV_SYN); 979 evdev_support_event(evdev, EV_KEY); 980 if (sc->sc_flags & (HKBD_FLAG_NUMLOCK | HKBD_FLAG_CAPSLOCK | 981 HKBD_FLAG_SCROLLLOCK)) 982 evdev_support_event(evdev, EV_LED); 983 evdev_support_event(evdev, EV_REP); 984 985 for (i = 0x00; i <= 0xFF; i++) 986 evdev_support_key(evdev, evdev_hid2key(i)); 987 if (sc->sc_flags & HKBD_FLAG_NUMLOCK) 988 evdev_support_led(evdev, LED_NUML); 989 if (sc->sc_flags & HKBD_FLAG_CAPSLOCK) 990 evdev_support_led(evdev, LED_CAPSL); 991 if (sc->sc_flags & HKBD_FLAG_SCROLLLOCK) 992 evdev_support_led(evdev, LED_SCROLLL); 993 994 if (evdev_register(evdev)) 995 evdev_free(evdev); 996 else 997 sc->sc_evdev = evdev; 998 #endif 999 1000 sc->sc_flags |= HKBD_FLAG_ATTACHED; 1001 1002 if (bootverbose) { 1003 kbdd_diag(kbd, bootverbose); 1004 } 1005 1006 /* start the keyboard */ 1007 hidbus_intr_start(dev); 1008 1009 return (0); /* success */ 1010 1011 detach: 1012 hkbd_detach(dev); 1013 return (ENXIO); /* error */ 1014 } 1015 1016 static int 1017 hkbd_detach(device_t dev) 1018 { 1019 struct hkbd_softc *sc = device_get_softc(dev); 1020 #ifdef EVDEV_SUPPORT 1021 struct epoch_tracker et; 1022 #endif 1023 int error; 1024 1025 SYSCONS_LOCK_ASSERT(); 1026 1027 DPRINTF("\n"); 1028 1029 sc->sc_flags |= HKBD_FLAG_GONE; 1030 1031 HKBD_LOCK(sc); 1032 callout_stop(&sc->sc_callout); 1033 HKBD_UNLOCK(sc); 1034 1035 /* kill any stuck keys */ 1036 if (sc->sc_flags & HKBD_FLAG_ATTACHED) { 1037 /* stop receiving events from the USB keyboard */ 1038 hidbus_intr_stop(dev); 1039 1040 /* release all leftover keys, if any */ 1041 memset(&sc->sc_ndata, 0, bitstr_size(HKBD_NKEYCODE)); 1042 1043 /* process releasing of all keys */ 1044 HKBD_LOCK(sc); 1045 #ifdef EVDEV_SUPPORT 1046 epoch_enter_preempt(INPUT_EPOCH, &et); 1047 #endif 1048 hkbd_interrupt(sc); 1049 #ifdef EVDEV_SUPPORT 1050 epoch_exit_preempt(INPUT_EPOCH, &et); 1051 #endif 1052 HKBD_UNLOCK(sc); 1053 taskqueue_drain(taskqueue_swi_giant, &sc->sc_task); 1054 } 1055 1056 mtx_destroy(&sc->sc_mtx); 1057 hkbd_disable(&sc->sc_kbd); 1058 1059 #ifdef KBD_INSTALL_CDEV 1060 if (sc->sc_flags & HKBD_FLAG_ATTACHED) { 1061 error = kbd_detach(&sc->sc_kbd); 1062 if (error) { 1063 /* usb attach cannot return an error */ 1064 device_printf(dev, "WARNING: kbd_detach() " 1065 "returned non-zero! (ignored)\n"); 1066 } 1067 } 1068 #endif 1069 1070 #ifdef EVDEV_SUPPORT 1071 evdev_free(sc->sc_evdev); 1072 #endif 1073 1074 if (KBD_IS_CONFIGURED(&sc->sc_kbd)) { 1075 error = kbd_unregister(&sc->sc_kbd); 1076 if (error) { 1077 /* usb attach cannot return an error */ 1078 device_printf(dev, "WARNING: kbd_unregister() " 1079 "returned non-zero! (ignored)\n"); 1080 } 1081 } 1082 sc->sc_kbd.kb_flags = 0; 1083 1084 DPRINTF("%s: disconnected\n", 1085 device_get_nameunit(dev)); 1086 1087 return (0); 1088 } 1089 1090 static int 1091 hkbd_resume(device_t dev) 1092 { 1093 struct hkbd_softc *sc = device_get_softc(dev); 1094 1095 SYSCONS_LOCK_ASSERT(); 1096 1097 hkbd_clear_state(&sc->sc_kbd); 1098 1099 return (0); 1100 } 1101 1102 #ifdef EVDEV_SUPPORT 1103 static void 1104 hkbd_ev_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, 1105 int32_t value) 1106 { 1107 keyboard_t *kbd = evdev_get_softc(evdev); 1108 1109 if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && 1110 (type == EV_LED || type == EV_REP)) { 1111 mtx_lock(&Giant); 1112 kbd_ev_event(kbd, type, code, value); 1113 mtx_unlock(&Giant); 1114 } 1115 } 1116 #endif 1117 1118 /* early keyboard probe, not supported */ 1119 static int 1120 hkbd_configure(int flags) 1121 { 1122 return (0); 1123 } 1124 1125 /* detect a keyboard, not used */ 1126 static int 1127 hkbd__probe(int unit, void *arg, int flags) 1128 { 1129 return (ENXIO); 1130 } 1131 1132 /* reset and initialize the device, not used */ 1133 static int 1134 hkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags) 1135 { 1136 return (ENXIO); 1137 } 1138 1139 /* test the interface to the device, not used */ 1140 static int 1141 hkbd_test_if(keyboard_t *kbd) 1142 { 1143 return (0); 1144 } 1145 1146 /* finish using this keyboard, not used */ 1147 static int 1148 hkbd_term(keyboard_t *kbd) 1149 { 1150 return (ENXIO); 1151 } 1152 1153 /* keyboard interrupt routine, not used */ 1154 static int 1155 hkbd_intr(keyboard_t *kbd, void *arg) 1156 { 1157 return (0); 1158 } 1159 1160 /* lock the access to the keyboard, not used */ 1161 static int 1162 hkbd_lock(keyboard_t *kbd, int lock) 1163 { 1164 return (1); 1165 } 1166 1167 /* 1168 * Enable the access to the device; until this function is called, 1169 * the client cannot read from the keyboard. 1170 */ 1171 static int 1172 hkbd_enable(keyboard_t *kbd) 1173 { 1174 1175 SYSCONS_LOCK(); 1176 KBD_ACTIVATE(kbd); 1177 SYSCONS_UNLOCK(); 1178 1179 return (0); 1180 } 1181 1182 /* disallow the access to the device */ 1183 static int 1184 hkbd_disable(keyboard_t *kbd) 1185 { 1186 1187 SYSCONS_LOCK(); 1188 KBD_DEACTIVATE(kbd); 1189 SYSCONS_UNLOCK(); 1190 1191 return (0); 1192 } 1193 1194 /* check if data is waiting */ 1195 /* Currently unused. */ 1196 static int 1197 hkbd_check(keyboard_t *kbd) 1198 { 1199 struct hkbd_softc *sc = kbd->kb_data; 1200 1201 SYSCONS_LOCK_ASSERT(); 1202 1203 if (!KBD_IS_ACTIVE(kbd)) 1204 return (0); 1205 1206 if (sc->sc_flags & HKBD_FLAG_POLLING) 1207 hkbd_do_poll(sc, 0); 1208 1209 #ifdef HKBD_EMULATE_ATSCANCODE 1210 if (sc->sc_buffered_char[0]) { 1211 return (1); 1212 } 1213 #endif 1214 if (sc->sc_inputhead != atomic_load_acq_32(&sc->sc_inputtail)) { 1215 return (1); 1216 } 1217 return (0); 1218 } 1219 1220 /* check if char is waiting */ 1221 static int 1222 hkbd_check_char_locked(keyboard_t *kbd) 1223 { 1224 struct hkbd_softc *sc = kbd->kb_data; 1225 1226 SYSCONS_LOCK_ASSERT(); 1227 1228 if (!KBD_IS_ACTIVE(kbd)) 1229 return (0); 1230 1231 if ((sc->sc_composed_char > 0) && 1232 (!(sc->sc_flags & HKBD_FLAG_COMPOSE))) { 1233 return (1); 1234 } 1235 return (hkbd_check(kbd)); 1236 } 1237 1238 static int 1239 hkbd_check_char(keyboard_t *kbd) 1240 { 1241 int result; 1242 1243 SYSCONS_LOCK(); 1244 result = hkbd_check_char_locked(kbd); 1245 SYSCONS_UNLOCK(); 1246 1247 return (result); 1248 } 1249 1250 /* read one byte from the keyboard if it's allowed */ 1251 /* Currently unused. */ 1252 static int 1253 hkbd_read(keyboard_t *kbd, int wait) 1254 { 1255 struct hkbd_softc *sc = kbd->kb_data; 1256 int32_t usbcode; 1257 #ifdef HKBD_EMULATE_ATSCANCODE 1258 uint32_t keycode; 1259 uint32_t scancode; 1260 1261 #endif 1262 1263 SYSCONS_LOCK_ASSERT(); 1264 1265 if (!KBD_IS_ACTIVE(kbd)) 1266 return (-1); 1267 1268 #ifdef HKBD_EMULATE_ATSCANCODE 1269 if (sc->sc_buffered_char[0]) { 1270 scancode = sc->sc_buffered_char[0]; 1271 if (scancode & SCAN_PREFIX) { 1272 sc->sc_buffered_char[0] &= ~SCAN_PREFIX; 1273 return ((scancode & SCAN_PREFIX_E0) ? 0xe0 : 0xe1); 1274 } 1275 sc->sc_buffered_char[0] = sc->sc_buffered_char[1]; 1276 sc->sc_buffered_char[1] = 0; 1277 return (scancode); 1278 } 1279 #endif /* HKBD_EMULATE_ATSCANCODE */ 1280 1281 /* XXX */ 1282 usbcode = hkbd_get_key(sc, (wait == FALSE) ? 0 : 1); 1283 if (!KBD_IS_ACTIVE(kbd) || (usbcode == -1)) 1284 return (-1); 1285 1286 ++(kbd->kb_count); 1287 1288 #ifdef HKBD_EMULATE_ATSCANCODE 1289 keycode = hkbd_atkeycode(usbcode, sc->sc_ndata); 1290 if (keycode == NN) { 1291 return -1; 1292 } 1293 return (hkbd_key2scan(sc, keycode, sc->sc_ndata, 1294 (usbcode & KEY_RELEASE))); 1295 #else /* !HKBD_EMULATE_ATSCANCODE */ 1296 return (usbcode); 1297 #endif /* HKBD_EMULATE_ATSCANCODE */ 1298 } 1299 1300 /* read char from the keyboard */ 1301 static uint32_t 1302 hkbd_read_char_locked(keyboard_t *kbd, int wait) 1303 { 1304 struct hkbd_softc *sc = kbd->kb_data; 1305 uint32_t action; 1306 uint32_t keycode; 1307 int32_t usbcode; 1308 #ifdef HKBD_EMULATE_ATSCANCODE 1309 uint32_t scancode; 1310 #endif 1311 1312 SYSCONS_LOCK_ASSERT(); 1313 1314 if (!KBD_IS_ACTIVE(kbd)) 1315 return (NOKEY); 1316 1317 next_code: 1318 1319 /* do we have a composed char to return ? */ 1320 1321 if ((sc->sc_composed_char > 0) && 1322 (!(sc->sc_flags & HKBD_FLAG_COMPOSE))) { 1323 action = sc->sc_composed_char; 1324 sc->sc_composed_char = 0; 1325 1326 if (action > 0xFF) { 1327 goto errkey; 1328 } 1329 goto done; 1330 } 1331 #ifdef HKBD_EMULATE_ATSCANCODE 1332 1333 /* do we have a pending raw scan code? */ 1334 1335 if (sc->sc_mode == K_RAW) { 1336 scancode = sc->sc_buffered_char[0]; 1337 if (scancode) { 1338 if (scancode & SCAN_PREFIX) { 1339 sc->sc_buffered_char[0] = (scancode & ~SCAN_PREFIX); 1340 return ((scancode & SCAN_PREFIX_E0) ? 0xe0 : 0xe1); 1341 } 1342 sc->sc_buffered_char[0] = sc->sc_buffered_char[1]; 1343 sc->sc_buffered_char[1] = 0; 1344 return (scancode); 1345 } 1346 } 1347 #endif /* HKBD_EMULATE_ATSCANCODE */ 1348 1349 /* see if there is something in the keyboard port */ 1350 /* XXX */ 1351 usbcode = hkbd_get_key(sc, (wait == FALSE) ? 0 : 1); 1352 if (usbcode == -1) { 1353 return (NOKEY); 1354 } 1355 ++kbd->kb_count; 1356 1357 #ifdef HKBD_EMULATE_ATSCANCODE 1358 /* USB key index -> key code -> AT scan code */ 1359 keycode = hkbd_atkeycode(usbcode, sc->sc_ndata); 1360 if (keycode == NN) { 1361 return (NOKEY); 1362 } 1363 /* return an AT scan code for the K_RAW mode */ 1364 if (sc->sc_mode == K_RAW) { 1365 return (hkbd_key2scan(sc, keycode, sc->sc_ndata, 1366 (usbcode & KEY_RELEASE))); 1367 } 1368 #else /* !HKBD_EMULATE_ATSCANCODE */ 1369 1370 /* return the byte as is for the K_RAW mode */ 1371 if (sc->sc_mode == K_RAW) { 1372 return (usbcode); 1373 } 1374 /* USB key index -> key code */ 1375 keycode = hkbd_trtab[KEY_INDEX(usbcode)]; 1376 if (keycode == NN) { 1377 return (NOKEY); 1378 } 1379 #endif /* HKBD_EMULATE_ATSCANCODE */ 1380 1381 switch (keycode) { 1382 case 0x38: /* left alt (compose key) */ 1383 if (usbcode & KEY_RELEASE) { 1384 if (sc->sc_flags & HKBD_FLAG_COMPOSE) { 1385 sc->sc_flags &= ~HKBD_FLAG_COMPOSE; 1386 1387 if (sc->sc_composed_char > 0xFF) { 1388 sc->sc_composed_char = 0; 1389 } 1390 } 1391 } else { 1392 if (!(sc->sc_flags & HKBD_FLAG_COMPOSE)) { 1393 sc->sc_flags |= HKBD_FLAG_COMPOSE; 1394 sc->sc_composed_char = 0; 1395 } 1396 } 1397 break; 1398 } 1399 1400 /* return the key code in the K_CODE mode */ 1401 if (usbcode & KEY_RELEASE) { 1402 keycode |= SCAN_RELEASE; 1403 } 1404 if (sc->sc_mode == K_CODE) { 1405 return (keycode); 1406 } 1407 /* compose a character code */ 1408 if (sc->sc_flags & HKBD_FLAG_COMPOSE) { 1409 switch (keycode) { 1410 /* key pressed, process it */ 1411 case 0x47: 1412 case 0x48: 1413 case 0x49: /* keypad 7,8,9 */ 1414 sc->sc_composed_char *= 10; 1415 sc->sc_composed_char += keycode - 0x40; 1416 goto check_composed; 1417 1418 case 0x4B: 1419 case 0x4C: 1420 case 0x4D: /* keypad 4,5,6 */ 1421 sc->sc_composed_char *= 10; 1422 sc->sc_composed_char += keycode - 0x47; 1423 goto check_composed; 1424 1425 case 0x4F: 1426 case 0x50: 1427 case 0x51: /* keypad 1,2,3 */ 1428 sc->sc_composed_char *= 10; 1429 sc->sc_composed_char += keycode - 0x4E; 1430 goto check_composed; 1431 1432 case 0x52: /* keypad 0 */ 1433 sc->sc_composed_char *= 10; 1434 goto check_composed; 1435 1436 /* key released, no interest here */ 1437 case SCAN_RELEASE | 0x47: 1438 case SCAN_RELEASE | 0x48: 1439 case SCAN_RELEASE | 0x49: /* keypad 7,8,9 */ 1440 case SCAN_RELEASE | 0x4B: 1441 case SCAN_RELEASE | 0x4C: 1442 case SCAN_RELEASE | 0x4D: /* keypad 4,5,6 */ 1443 case SCAN_RELEASE | 0x4F: 1444 case SCAN_RELEASE | 0x50: 1445 case SCAN_RELEASE | 0x51: /* keypad 1,2,3 */ 1446 case SCAN_RELEASE | 0x52: /* keypad 0 */ 1447 goto next_code; 1448 1449 case 0x38: /* left alt key */ 1450 break; 1451 1452 default: 1453 if (sc->sc_composed_char > 0) { 1454 sc->sc_flags &= ~HKBD_FLAG_COMPOSE; 1455 sc->sc_composed_char = 0; 1456 goto errkey; 1457 } 1458 break; 1459 } 1460 } 1461 /* keycode to key action */ 1462 action = genkbd_keyaction(kbd, SCAN_CHAR(keycode), 1463 (keycode & SCAN_RELEASE), 1464 &sc->sc_state, &sc->sc_accents); 1465 if (action == NOKEY) { 1466 goto next_code; 1467 } 1468 done: 1469 return (action); 1470 1471 check_composed: 1472 if (sc->sc_composed_char <= 0xFF) { 1473 goto next_code; 1474 } 1475 errkey: 1476 return (ERRKEY); 1477 } 1478 1479 /* Currently wait is always false. */ 1480 static uint32_t 1481 hkbd_read_char(keyboard_t *kbd, int wait) 1482 { 1483 uint32_t keycode; 1484 1485 SYSCONS_LOCK(); 1486 keycode = hkbd_read_char_locked(kbd, wait); 1487 SYSCONS_UNLOCK(); 1488 1489 return (keycode); 1490 } 1491 1492 /* some useful control functions */ 1493 static int 1494 hkbd_ioctl_locked(keyboard_t *kbd, u_long cmd, caddr_t arg) 1495 { 1496 struct hkbd_softc *sc = kbd->kb_data; 1497 #ifdef EVDEV_SUPPORT 1498 struct epoch_tracker et; 1499 #endif 1500 int error; 1501 int i; 1502 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1503 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1504 int ival; 1505 1506 #endif 1507 1508 SYSCONS_LOCK_ASSERT(); 1509 1510 switch (cmd) { 1511 case KDGKBMODE: /* get keyboard mode */ 1512 *(int *)arg = sc->sc_mode; 1513 break; 1514 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1515 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1516 case _IO('K', 7): 1517 ival = IOCPARM_IVAL(arg); 1518 arg = (caddr_t)&ival; 1519 /* FALLTHROUGH */ 1520 #endif 1521 case KDSKBMODE: /* set keyboard mode */ 1522 switch (*(int *)arg) { 1523 case K_XLATE: 1524 if (sc->sc_mode != K_XLATE) { 1525 /* make lock key state and LED state match */ 1526 sc->sc_state &= ~LOCK_MASK; 1527 sc->sc_state |= KBD_LED_VAL(kbd); 1528 } 1529 /* FALLTHROUGH */ 1530 case K_RAW: 1531 case K_CODE: 1532 if (sc->sc_mode != *(int *)arg) { 1533 if ((sc->sc_flags & HKBD_FLAG_POLLING) == 0) 1534 hkbd_clear_state(kbd); 1535 sc->sc_mode = *(int *)arg; 1536 } 1537 break; 1538 default: 1539 return (EINVAL); 1540 } 1541 break; 1542 1543 case KDGETLED: /* get keyboard LED */ 1544 *(int *)arg = KBD_LED_VAL(kbd); 1545 break; 1546 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1547 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1548 case _IO('K', 66): 1549 ival = IOCPARM_IVAL(arg); 1550 arg = (caddr_t)&ival; 1551 /* FALLTHROUGH */ 1552 #endif 1553 case KDSETLED: /* set keyboard LED */ 1554 /* NOTE: lock key state in "sc_state" won't be changed */ 1555 if (*(int *)arg & ~LOCK_MASK) 1556 return (EINVAL); 1557 1558 i = *(int *)arg; 1559 1560 /* replace CAPS LED with ALTGR LED for ALTGR keyboards */ 1561 if (sc->sc_mode == K_XLATE && 1562 kbd->kb_keymap->n_keys > ALTGR_OFFSET) { 1563 if (i & ALKED) 1564 i |= CLKED; 1565 else 1566 i &= ~CLKED; 1567 } 1568 if (KBD_HAS_DEVICE(kbd)) { 1569 error = hkbd_set_leds(sc, i); 1570 if (error) 1571 return (error); 1572 } 1573 #ifdef EVDEV_SUPPORT 1574 if (sc->sc_evdev != NULL && !HID_IN_POLLING_MODE()) { 1575 epoch_enter_preempt(INPUT_EPOCH, &et); 1576 evdev_push_leds(sc->sc_evdev, i); 1577 epoch_exit_preempt(INPUT_EPOCH, &et); 1578 } 1579 #endif 1580 1581 KBD_LED_VAL(kbd) = *(int *)arg; 1582 break; 1583 1584 case KDGKBSTATE: /* get lock key state */ 1585 *(int *)arg = sc->sc_state & LOCK_MASK; 1586 break; 1587 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1588 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1589 case _IO('K', 20): 1590 ival = IOCPARM_IVAL(arg); 1591 arg = (caddr_t)&ival; 1592 /* FALLTHROUGH */ 1593 #endif 1594 case KDSKBSTATE: /* set lock key state */ 1595 if (*(int *)arg & ~LOCK_MASK) { 1596 return (EINVAL); 1597 } 1598 sc->sc_state &= ~LOCK_MASK; 1599 sc->sc_state |= *(int *)arg; 1600 1601 /* set LEDs and quit */ 1602 return (hkbd_ioctl_locked(kbd, KDSETLED, arg)); 1603 1604 case KDSETREPEAT: /* set keyboard repeat rate (new 1605 * interface) */ 1606 if (!KBD_HAS_DEVICE(kbd)) { 1607 return (0); 1608 } 1609 /* 1610 * Convert negative, zero and tiny args to the same limits 1611 * as atkbd. We could support delays of 1 msec, but 1612 * anything much shorter than the shortest atkbd value 1613 * of 250.34 is almost unusable as well as incompatible. 1614 */ 1615 kbd->kb_delay1 = imax(((int *)arg)[0], 250); 1616 kbd->kb_delay2 = imax(((int *)arg)[1], 34); 1617 #ifdef EVDEV_SUPPORT 1618 if (sc->sc_evdev != NULL && !HID_IN_POLLING_MODE()) { 1619 epoch_enter_preempt(INPUT_EPOCH, &et); 1620 evdev_push_repeats(sc->sc_evdev, kbd); 1621 epoch_exit_preempt(INPUT_EPOCH, &et); 1622 } 1623 #endif 1624 return (0); 1625 1626 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \ 1627 defined(COMPAT_FREEBSD4) || defined(COMPAT_43) 1628 case _IO('K', 67): 1629 ival = IOCPARM_IVAL(arg); 1630 arg = (caddr_t)&ival; 1631 /* FALLTHROUGH */ 1632 #endif 1633 case KDSETRAD: /* set keyboard repeat rate (old 1634 * interface) */ 1635 return (hkbd_set_typematic(kbd, *(int *)arg)); 1636 1637 case PIO_KEYMAP: /* set keyboard translation table */ 1638 case OPIO_KEYMAP: /* set keyboard translation table 1639 * (compat) */ 1640 case PIO_KEYMAPENT: /* set keyboard translation table 1641 * entry */ 1642 case PIO_DEADKEYMAP: /* set accent key translation table */ 1643 sc->sc_accents = 0; 1644 /* FALLTHROUGH */ 1645 default: 1646 return (genkbd_commonioctl(kbd, cmd, arg)); 1647 } 1648 1649 return (0); 1650 } 1651 1652 static int 1653 hkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg) 1654 { 1655 int result; 1656 1657 /* 1658 * XXX Check if someone is calling us from a critical section: 1659 */ 1660 if (curthread->td_critnest != 0) 1661 return (EDEADLK); 1662 1663 /* 1664 * XXX KDGKBSTATE, KDSKBSTATE and KDSETLED can be called from any 1665 * context where printf(9) can be called, which among other things 1666 * includes interrupt filters and threads with any kinds of locks 1667 * already held. For this reason it would be dangerous to acquire 1668 * the Giant here unconditionally. On the other hand we have to 1669 * have it to handle the ioctl. 1670 * So we make our best effort to auto-detect whether we can grab 1671 * the Giant or not. Blame syscons(4) for this. 1672 */ 1673 switch (cmd) { 1674 case KDGKBSTATE: 1675 case KDSKBSTATE: 1676 case KDSETLED: 1677 if (!mtx_owned(&Giant) && !HID_IN_POLLING_MODE()) 1678 return (EDEADLK); /* best I could come up with */ 1679 /* FALLTHROUGH */ 1680 default: 1681 SYSCONS_LOCK(); 1682 result = hkbd_ioctl_locked(kbd, cmd, arg); 1683 SYSCONS_UNLOCK(); 1684 return (result); 1685 } 1686 } 1687 1688 /* clear the internal state of the keyboard */ 1689 static void 1690 hkbd_clear_state(keyboard_t *kbd) 1691 { 1692 struct hkbd_softc *sc = kbd->kb_data; 1693 1694 SYSCONS_LOCK_ASSERT(); 1695 1696 sc->sc_flags &= ~(HKBD_FLAG_COMPOSE | HKBD_FLAG_POLLING); 1697 sc->sc_state &= LOCK_MASK; /* preserve locking key state */ 1698 sc->sc_accents = 0; 1699 sc->sc_composed_char = 0; 1700 #ifdef HKBD_EMULATE_ATSCANCODE 1701 sc->sc_buffered_char[0] = 0; 1702 sc->sc_buffered_char[1] = 0; 1703 #endif 1704 memset(&sc->sc_ndata, 0, bitstr_size(HKBD_NKEYCODE)); 1705 memset(&sc->sc_odata, 0, bitstr_size(HKBD_NKEYCODE)); 1706 memset(&sc->sc_ndata0, 0, bitstr_size(HKBD_NKEYCODE)); 1707 memset(&sc->sc_odata0, 0, bitstr_size(HKBD_NKEYCODE)); 1708 sc->sc_repeat_time = 0; 1709 sc->sc_repeat_key = 0; 1710 } 1711 1712 /* save the internal state, not used */ 1713 static int 1714 hkbd_get_state(keyboard_t *kbd, void *buf, size_t len) 1715 { 1716 return (len == 0) ? 1 : -1; 1717 } 1718 1719 /* set the internal state, not used */ 1720 static int 1721 hkbd_set_state(keyboard_t *kbd, void *buf, size_t len) 1722 { 1723 return (EINVAL); 1724 } 1725 1726 static int 1727 hkbd_poll(keyboard_t *kbd, int on) 1728 { 1729 struct hkbd_softc *sc = kbd->kb_data; 1730 1731 SYSCONS_LOCK(); 1732 /* 1733 * Keep a reference count on polling to allow recursive 1734 * cngrab() during a panic for example. 1735 */ 1736 if (on) 1737 sc->sc_polling++; 1738 else if (sc->sc_polling > 0) 1739 sc->sc_polling--; 1740 1741 if (sc->sc_polling != 0) { 1742 sc->sc_flags |= HKBD_FLAG_POLLING; 1743 sc->sc_poll_thread = curthread; 1744 } else { 1745 sc->sc_flags &= ~HKBD_FLAG_POLLING; 1746 sc->sc_delay = 0; 1747 } 1748 SYSCONS_UNLOCK(); 1749 1750 return (0); 1751 } 1752 1753 /* local functions */ 1754 1755 static int 1756 hkbd_set_leds(struct hkbd_softc *sc, uint8_t leds) 1757 { 1758 uint8_t id; 1759 uint8_t any; 1760 uint8_t *buf; 1761 int len; 1762 int error; 1763 1764 SYSCONS_LOCK_ASSERT(); 1765 DPRINTF("leds=0x%02x\n", leds); 1766 1767 #ifdef HID_DEBUG 1768 if (hkbd_no_leds) 1769 return (0); 1770 #endif 1771 1772 memset(sc->sc_buffer, 0, HKBD_BUFFER_SIZE); 1773 1774 id = sc->sc_id_leds; 1775 any = 0; 1776 1777 /* Assumption: All led bits must be in the same ID. */ 1778 1779 if (sc->sc_flags & HKBD_FLAG_NUMLOCK) { 1780 hid_put_udata(sc->sc_buffer + 1, HKBD_BUFFER_SIZE - 1, 1781 &sc->sc_loc_numlock, leds & NLKED ? 1 : 0); 1782 any = 1; 1783 } 1784 1785 if (sc->sc_flags & HKBD_FLAG_SCROLLLOCK) { 1786 hid_put_udata(sc->sc_buffer + 1, HKBD_BUFFER_SIZE - 1, 1787 &sc->sc_loc_scrolllock, leds & SLKED ? 1 : 0); 1788 any = 1; 1789 } 1790 1791 if (sc->sc_flags & HKBD_FLAG_CAPSLOCK) { 1792 hid_put_udata(sc->sc_buffer + 1, HKBD_BUFFER_SIZE - 1, 1793 &sc->sc_loc_capslock, leds & CLKED ? 1 : 0); 1794 any = 1; 1795 } 1796 1797 /* if no leds, nothing to do */ 1798 if (!any) 1799 return (0); 1800 1801 /* range check output report length */ 1802 len = sc->sc_led_size; 1803 if (len > (HKBD_BUFFER_SIZE - 1)) 1804 len = (HKBD_BUFFER_SIZE - 1); 1805 1806 /* check if we need to prefix an ID byte */ 1807 1808 if (id != 0) { 1809 sc->sc_buffer[0] = id; 1810 buf = sc->sc_buffer; 1811 } else { 1812 buf = sc->sc_buffer + 1; 1813 } 1814 1815 DPRINTF("len=%d, id=%d\n", len, id); 1816 1817 /* start data transfer */ 1818 SYSCONS_UNLOCK(); 1819 error = hid_write(sc->sc_dev, buf, len); 1820 SYSCONS_LOCK(); 1821 1822 return (error); 1823 } 1824 1825 static int 1826 hkbd_set_typematic(keyboard_t *kbd, int code) 1827 { 1828 #ifdef EVDEV_SUPPORT 1829 struct hkbd_softc *sc = kbd->kb_data; 1830 #endif 1831 static const int delays[] = {250, 500, 750, 1000}; 1832 static const int rates[] = {34, 38, 42, 46, 50, 55, 59, 63, 1833 68, 76, 84, 92, 100, 110, 118, 126, 1834 136, 152, 168, 184, 200, 220, 236, 252, 1835 272, 304, 336, 368, 400, 440, 472, 504}; 1836 1837 if (code & ~0x7f) { 1838 return (EINVAL); 1839 } 1840 kbd->kb_delay1 = delays[(code >> 5) & 3]; 1841 kbd->kb_delay2 = rates[code & 0x1f]; 1842 #ifdef EVDEV_SUPPORT 1843 if (sc->sc_evdev != NULL) 1844 evdev_push_repeats(sc->sc_evdev, kbd); 1845 #endif 1846 return (0); 1847 } 1848 1849 #ifdef HKBD_EMULATE_ATSCANCODE 1850 static uint32_t 1851 hkbd_atkeycode(int usbcode, const bitstr_t *bitmap) 1852 { 1853 uint32_t keycode; 1854 1855 keycode = hkbd_trtab[KEY_INDEX(usbcode)]; 1856 1857 /* 1858 * Translate Alt-PrintScreen to SysRq. 1859 * 1860 * Some or all AT keyboards connected through USB have already 1861 * mapped Alted PrintScreens to an unusual usbcode (0x8a). 1862 * hkbd_trtab translates this to 0x7e, and key2scan() would 1863 * translate that to 0x79 (Intl' 4). Assume that if we have 1864 * an Alted 0x7e here then it actually is an Alted PrintScreen. 1865 * 1866 * The usual usbcode for all PrintScreens is 0x46. hkbd_trtab 1867 * translates this to 0x5c, so the Alt check to classify 0x5c 1868 * is routine. 1869 */ 1870 if ((keycode == 0x5c || keycode == 0x7e) && 1871 (HKBD_KEY_PRESSED(bitmap, 0xe2 /* ALT-L */) || 1872 HKBD_KEY_PRESSED(bitmap, 0xe6 /* ALT-R */))) 1873 return (0x54); 1874 return (keycode); 1875 } 1876 1877 static int 1878 hkbd_key2scan(struct hkbd_softc *sc, int code, const bitstr_t *bitmap, int up) 1879 { 1880 static const int scan[] = { 1881 /* 89 */ 1882 0x11c, /* Enter */ 1883 /* 90-99 */ 1884 0x11d, /* Ctrl-R */ 1885 0x135, /* Divide */ 1886 0x137, /* PrintScreen */ 1887 0x138, /* Alt-R */ 1888 0x147, /* Home */ 1889 0x148, /* Up */ 1890 0x149, /* PageUp */ 1891 0x14b, /* Left */ 1892 0x14d, /* Right */ 1893 0x14f, /* End */ 1894 /* 100-109 */ 1895 0x150, /* Down */ 1896 0x151, /* PageDown */ 1897 0x152, /* Insert */ 1898 0x153, /* Delete */ 1899 0x146, /* Pause/Break */ 1900 0x15b, /* Win_L(Super_L) */ 1901 0x15c, /* Win_R(Super_R) */ 1902 0x15d, /* Application(Menu) */ 1903 1904 /* SUN TYPE 6 USB KEYBOARD */ 1905 0x168, /* Sun Type 6 Help */ 1906 0x15e, /* Sun Type 6 Stop */ 1907 /* 110 - 119 */ 1908 0x15f, /* Sun Type 6 Again */ 1909 0x160, /* Sun Type 6 Props */ 1910 0x161, /* Sun Type 6 Undo */ 1911 0x162, /* Sun Type 6 Front */ 1912 0x163, /* Sun Type 6 Copy */ 1913 0x164, /* Sun Type 6 Open */ 1914 0x165, /* Sun Type 6 Paste */ 1915 0x166, /* Sun Type 6 Find */ 1916 0x167, /* Sun Type 6 Cut */ 1917 0x125, /* Sun Type 6 Mute */ 1918 /* 120 - 130 */ 1919 0x11f, /* Sun Type 6 VolumeDown */ 1920 0x11e, /* Sun Type 6 VolumeUp */ 1921 0x120, /* Sun Type 6 PowerDown */ 1922 1923 /* Japanese 106/109 keyboard */ 1924 0x73, /* Keyboard Intl' 1 (backslash / underscore) */ 1925 0x70, /* Keyboard Intl' 2 (Katakana / Hiragana) */ 1926 0x7d, /* Keyboard Intl' 3 (Yen sign) (Not using in jp106/109) */ 1927 0x79, /* Keyboard Intl' 4 (Henkan) */ 1928 0x7b, /* Keyboard Intl' 5 (Muhenkan) */ 1929 0x5c, /* Keyboard Intl' 6 (Keypad ,) (For PC-9821 layout) */ 1930 0x71, /* Apple Keyboard JIS (Kana) */ 1931 0x72, /* Apple Keyboard JIS (Eisu) */ 1932 }; 1933 1934 if ((code >= 89) && (code < (int)(89 + nitems(scan)))) { 1935 code = scan[code - 89]; 1936 } 1937 /* PrintScreen */ 1938 if (code == 0x137 && (!( 1939 HKBD_KEY_PRESSED(bitmap, 0xe0 /* CTRL-L */) || 1940 HKBD_KEY_PRESSED(bitmap, 0xe4 /* CTRL-R */) || 1941 HKBD_KEY_PRESSED(bitmap, 0xe1 /* SHIFT-L */) || 1942 HKBD_KEY_PRESSED(bitmap, 0xe5 /* SHIFT-R */)))) { 1943 code |= SCAN_PREFIX_SHIFT; 1944 } 1945 /* Pause/Break */ 1946 if ((code == 0x146) && (!( 1947 HKBD_KEY_PRESSED(bitmap, 0xe0 /* CTRL-L */) || 1948 HKBD_KEY_PRESSED(bitmap, 0xe4 /* CTRL-R */)))) { 1949 code = (0x45 | SCAN_PREFIX_E1 | SCAN_PREFIX_CTL); 1950 } 1951 code |= (up ? SCAN_RELEASE : SCAN_PRESS); 1952 1953 if (code & SCAN_PREFIX) { 1954 if (code & SCAN_PREFIX_CTL) { 1955 /* Ctrl */ 1956 sc->sc_buffered_char[0] = (0x1d | (code & SCAN_RELEASE)); 1957 sc->sc_buffered_char[1] = (code & ~SCAN_PREFIX); 1958 } else if (code & SCAN_PREFIX_SHIFT) { 1959 /* Shift */ 1960 sc->sc_buffered_char[0] = (0x2a | (code & SCAN_RELEASE)); 1961 sc->sc_buffered_char[1] = (code & ~SCAN_PREFIX_SHIFT); 1962 } else { 1963 sc->sc_buffered_char[0] = (code & ~SCAN_PREFIX); 1964 sc->sc_buffered_char[1] = 0; 1965 } 1966 return ((code & SCAN_PREFIX_E0) ? 0xe0 : 0xe1); 1967 } 1968 return (code); 1969 1970 } 1971 1972 #endif /* HKBD_EMULATE_ATSCANCODE */ 1973 1974 static keyboard_switch_t hkbdsw = { 1975 .probe = &hkbd__probe, 1976 .init = &hkbd_init, 1977 .term = &hkbd_term, 1978 .intr = &hkbd_intr, 1979 .test_if = &hkbd_test_if, 1980 .enable = &hkbd_enable, 1981 .disable = &hkbd_disable, 1982 .read = &hkbd_read, 1983 .check = &hkbd_check, 1984 .read_char = &hkbd_read_char, 1985 .check_char = &hkbd_check_char, 1986 .ioctl = &hkbd_ioctl, 1987 .lock = &hkbd_lock, 1988 .clear_state = &hkbd_clear_state, 1989 .get_state = &hkbd_get_state, 1990 .set_state = &hkbd_set_state, 1991 .poll = &hkbd_poll, 1992 }; 1993 1994 KEYBOARD_DRIVER(hkbd, hkbdsw, hkbd_configure); 1995 1996 static int 1997 hkbd_driver_load(module_t mod, int what, void *arg) 1998 { 1999 switch (what) { 2000 case MOD_LOAD: 2001 kbd_add_driver(&hkbd_kbd_driver); 2002 break; 2003 case MOD_UNLOAD: 2004 kbd_delete_driver(&hkbd_kbd_driver); 2005 break; 2006 } 2007 return (0); 2008 } 2009 2010 static device_method_t hkbd_methods[] = { 2011 DEVMETHOD(device_probe, hkbd_probe), 2012 DEVMETHOD(device_attach, hkbd_attach), 2013 DEVMETHOD(device_detach, hkbd_detach), 2014 DEVMETHOD(device_resume, hkbd_resume), 2015 2016 DEVMETHOD_END 2017 }; 2018 2019 static driver_t hkbd_driver = { 2020 .name = "hkbd", 2021 .methods = hkbd_methods, 2022 .size = sizeof(struct hkbd_softc), 2023 }; 2024 2025 DRIVER_MODULE(hkbd, hidbus, hkbd_driver, hkbd_driver_load, NULL); 2026 MODULE_DEPEND(hkbd, hid, 1, 1, 1); 2027 MODULE_DEPEND(hkbd, hidbus, 1, 1, 1); 2028 #ifdef EVDEV_SUPPORT 2029 MODULE_DEPEND(hkbd, evdev, 1, 1, 1); 2030 #endif 2031 MODULE_VERSION(hkbd, 1); 2032 HID_PNP_INFO(hkbd_devs);
Cache object: 3520a9fde0e6a0beab123d604daa0ad7
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